Re: [PATCH 0/9] perf/x86: implement HT counter corruption workaround

2014-06-05 Thread Stephane Eranian
On Thu, Jun 5, 2014 at 12:28 AM, Andi Kleen wrote: >> There is no HW or FW workaround for this problem. > > Actually there is for global measurements: > > measure with Any bit set and divide by two. > > Please add a check that the any bit is set, and disable > the workaround for that case. > I thi

Re: [PATCH 0/9] perf/x86: implement HT counter corruption workaround

2014-06-04 Thread Andi Kleen
> There is no HW or FW workaround for this problem. Actually there is for global measurements: measure with Any bit set and divide by two. Please add a check that the any bit is set, and disable the workaround for that case. -Andi -- To unsubscribe from this list: send the line "unsubscribe l